Suppose you use Uber application as a rider and you request a ride to go from one place to another. Your driver just arrived at the parking lot of your place. The only thing you know about the ride is the license plate number. How do you find your U…

The greatest common divisor (gcd) of two positive integers is their largest common divisor. Let's consider two numbers 12 and 20.
The divisors of 12 are 1, 2, 3, 4, 6, 12
The divisors of 20 are 1, 2, 4, 5, 10 20
The highest number among the c…